Polyclonal Th1 cells transfer oil‐induced arthritis

Th1/Th2 cytokine balance in arthritis.

Elevated Ratio of Th17 Cell-Derived Th1 Cells (CD161+Th1 Cells) to CD161+Th17 Cells in Peripheral Blood of Early-Onset Rheumatoid Arthritis Patients

Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by the destruction of articular cartilage and bone with elevated levels of proinflammatory cytokines. It has been reported that IL-17 and Th17 cells play important roles in the pathogenesis of RA. Recently, plasticity in helper T cells has been demonstrated; Th17 cells can convert to Th1 cells. It remains to be elucidated...

Adoptive transfer of human gingiva-derived mesenchymal stem cells ameliorates collagen-induced arthritis via suppression of Th1 and Th17 cells and enhancement of regulatory T cell differentiation.

OBJECTIVE Current approaches offer no cures for rheumatoid arthritis (RA). Accumulating evidence has revealed that manipulation of bone marrow-derived mesenchymal stem cells (BM-MSCs) may have the potential to control or even prevent RA, but BM-MSC-based therapy faces many challenges, such as limited cell availability and reduced clinical feasibility. This study in mice with established collage...

Overexpression of Bcl(XL) in B cells promotes Th1 response and exacerbates collagen-induced arthritis.

B cells play a pathogenic or regulatory role in many autoimmune diseases through production of autoantibodies, cytokine production, and Ag presentation. However, the mechanisms that regulate these B cell functions under different autoimmune settings remain unclear. In the current study, we found that when B cells overexpress an antiapoptotic gene, Bcl(XL), they significantly increased productio...

Autoreactive Th1 cells activate monocytes to support regional Th17 responses in inflammatory arthritis.

We have examined mechanisms underlying the formation of pathologic Th17 cells using a transgenic mouse model in which autoreactive CD4(+) T cells recognize influenza virus hemagglutinin (HA) as a ubiquitously expressed self-Ag and induce inflammatory arthritis. The lymph nodes of arthritic mice contain elevated numbers of inflammatory monocytes (iMO) with an enhanced capacity to promote CD4(+) ...